curl --request POST \
  --url https://{workspace}.spreesuite.com/billspree/terms/post-meter-readings \
  --header 'Authorization: <api-key>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "method": "Update",
  "action": "Post Meter Readings",
  "apiVersion": "v2",
  "operation": "schedule",
  "data": {
    "termID": 5,
    "reading": "current",
    "sheduleTime": "2026-06-15T10:00:00"
  }
}
'

{
  "success": true,
  "statusCode": 123,
  "message": "<string>",
  "error": null,
  "data": {}
}